I’ve been piecing together DEM raster data from different sources, in an attempt to create a terrain slope raster. I’m using ArcGIS Pro to merge the DEM’s together and then using the split raster tool to break it apart again, into more manageable areas for further processing. From there, moving into QGIS to run the fill sinks (wang and liu) tool and then GRASS r.slope.aspect tool. But if you look at the image snip, I don’t know where the hatch marking is coming from, what it means, or where to even start when looking for a cleanup solution. I know some of my data is of better quality then the rest, but is there some way to correct for the hatch marking?enter image description here



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